8th Grade Area and Perimeter Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the 8th Grade area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheet8th Grade · Mathematics · Area & Perimeter8th Grade Area and Perimeter Worksheet — Level 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 13 cm long and 10 cm wide. Find its perimeter.
Answer: 46 cm
- P = 2 × (13 + 10)
- = 2 × 23 = 46 cm
2.A rectangle is 21 mm long and 6 mm wide. Find its area.
Answer: 126 mm2
- A = length × width = 21 × 6
- = 126 mm2
3.A rectangle is 22 m long and 16 m wide. Find its area.
Answer: 352 m2
- A = length × width = 22 × 16
- = 352 m2
4.A rectangle is 29 mm long and 4 mm wide. Find its perimeter.
Answer: 66 mm
- P = 2 × (29 + 4)
- = 2 × 33 = 66 mm
5.A rectangle is 24 cm long and 2 cm wide. Find its perimeter.
Answer: 52 cm
- P = 2 × (24 + 2)
- = 2 × 26 = 52 cm
6.A triangle has a base of 10 cm and a height of 8 cm. Find its area.
Answer: 40 cm2
- A = ½ × base × height = ½ × 10 × 8
- = 40 cm2
7.A rectangle is 5 mm long and 2 mm wide. Find its area.
Answer: 10 mm2
- A = length × width = 5 × 2
- = 10 mm2
8.A rectangle is 15 m long and 13 m wide. Find its area.
Answer: 195 m2
- A = length × width = 15 × 13
- = 195 m2
9.A triangle has a base of 10 m and a height of 3 m. Find its area.
Answer: 15 m2
- A = ½ × base × height = ½ × 10 × 3
- = 15 m2
10.A rectangle is 16 mm long and 19 mm wide. Find its area.
Answer: 304 mm2
- A = length × width = 16 × 19
- = 304 mm2
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